Charles Zajac
Charles Zajac is a Critical Care Medicine Registered Nurse in Albany, NY, registered under NPI 1689381832. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1450 WESTERN AVE STE 102, Albany, NY 12203. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 705152 | NY | Critical Care Medicine Registered Nurse primary |
| 705152 | NY | Certified Registered Nurse Anesthetist |
This provider holds licence 705152 issued in NY. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Certified Registered Nurse Anesthetist (crna)
- PAC ID
- 3779952718
Medicare enrolment is recorded as approved under the provider type Practitioner - Certified Registered Nurse Anesthetist (crna). This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Critical Care Medicine covers
Definition to come... NUCC Health Care Provider Taxonomy, code 163WC0200X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 163WC0200X | Critical Care Medicine Registered Nurse Critical Care Medicine | 705152 | NY | primary |
| 367500000X | Certified Registered Nurse Anesthetist | 705152 | NY |
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1689381832 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 27, 2022 |
| Last updated | May 5, 2026 |
| Status | Active |
| Sole proprietor | No |
| Practice address |
1450 WESTERN AVE STE 102 Albany, NY 12203 (518) 463-0050 |
| Mailing address |
16 SHERIDAN AVE APT 523 Albany, NY 12210 |
| Other identifiers |
705152
· RN LICENSE NUMBER (NY) |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 6 | 8 | 9 | 3 | 8 | 1 | 8 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 7 | 9 | 6 | 8 | 2 | 8 | 6 |
Sum = 78 · next multiple of 10 = 80 · check digit = 2 · actual last digit = 2
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.